If-then operation
[计] 蕴含操作, 如果则操作
🧩 词语组成解析
if
[if]
conj. 如果，倘若;即使;〈口〉是否;假设;
n. 条件，设想;
then
[ðɛn]
adv. 那时;然后;那么;话说回来;
adj. 当时的;那时的;
🗣️ 情景例句
I have no idea about fashion there days, which is why I dress so plainly.
我对现在的时装潮流一窍不通，这就是我穿得这么普通的原因。
What were you doing this time last year?
去年这时候你在干什么？
When it has been decided where we are going to drill, we put up at the surface an oil derrick.
当确定钻孔地点后，我们就在那里竖起一个井架。